Question

An alien with a mass of 71 kg is floating 670 m from his spaceship's center of mass. His ship's mass is about 500,000 kgWhat is the gravitational attraction between the alien and his ship?

Answer 1

Answer:

5.28 x 10⁻⁹N

Explanation:

Given parameters:

Mass of alien  = 71kg

Distance  = 670m

Mass of ship  = 500000kg

Unknown:

Gravitational attraction  = ?

Solution:

The gravitational attraction can be found using the Universal gravitation law proposed by Newton;

      Fg  = $\frac{G x mass 1 x mass 2}{d^{2} }$  

G is the universal gravitation constant  = 6.67 x 10⁻¹¹

 d is the distance

 Fg is the gravitational attraction

  Fg  = $\frac{6.67 x 10^{-11} x 71 x 500000 }{670^{2} }$   = 5.28 x 10⁻⁹N